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Expression of recombinant antigens in Escherichia coli: application on immunochemical studies of Schistosoma mansoni tegumental antigens


Expression of recombinant antigens in Escherichia coli: application on immunochemical studies of Schistosoma mansoni tegumental antigens



Memorias do Instituto Oswaldo Cruz 92(5): 637-641



ISSN/ISBN: 0074-0276

PMID: 9566231

Sm15 and Sm13 are recognized by antibodies from mice protectively vaccinated with tegumental membranes, suggesting a potential role in protective immunity. In order to raise antibodies for immunochemical investigations, the genes for these antigens were expressed in pGEX and pMal vectors so that comparisons could be made among different expression systems and different genes. The fusion proteins corresponding to several parts of the gene for the precursor of Sm15 failed in producing antibodies recognizing the parasite counterpart. On the other hand, antibodies raised against Sm13 MBP-fusion proteins recognized the 13 kDa tegumental protein. Thus the peculiarities of the gene of interest are important and the choice of the expression system must sometimes be decided on an empirical basis.

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Accession: 046052345

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Related references

Expression of Recombinant Antigens in Escherichia coli: Application on Immunochemical Studies of Schistosoma mansoni Tegumental Antigens. Memórias do Instituto Oswaldo Cruz 92(5): 637-641, 1997

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